Avengers: Infinity War - 14 Things You Probably Didn't Notice
12. Tobias Bluth
The film is obviosuly full of Easter Eggs but the best one is arguably one of the most difficult to spot, even despite the fact that a lot of people knew that it was in there thanks to leaked footage before the film came out.
Tobias Bluth of Arrested Development fame makes an appearance as part of the Collector's collection on Knowhere, as an homage to the Russos' time directing the show. It's a blink-and-you'll-miss it appearance, but he can be seen in the far left of frame when the Guardians first get to the area where they see Thanos torturing The Collector.
It's not David Cross behind the make-up though, as he has revealed to THR that he couldn't make it, despite the Russos asking repeatedly:
"They had called me when they were shooing the movie. I was actually in London working on a different show, except I was directing, so there's no way I could get over there. But they certainly didn't take no for an answer. They called and emailed multiple times. They even offered to send a plane. I certainly appreciate their trying, and of course I would have done it under any other circumstance, and that is saying a lot because it meant I would have had to shave."
11. Spaceships Are Small Fry

On the surface, Stan Lee's cameo appears to be a fairly light-weight one that gives him the chance of a gag line about Peter Parker's schoolmates being silly to get needlessly excited about the sight of a spaceship. He scoffs at their reaction as if brushing off spaceship sightings as nothing big.
But of course they wouldn't be to a veteran of this version of Earth. Anyone who has lived in New York for any amount of time will have seen a UFO in the shape of a man (Iron Man), another larger UFO in the shape of a man (Iron Monger), a full-blown alien invasion complete with giant woodlice (The Avengers), a thunder-shooting alien God (Thor) and would have heard of Wakandan flying machines, a Destroyer in New Mexico, alien creatures running rampant in London and space portals opening all over the place and an actual Giant Man in Germany.
At this stage, a spaceship appearing in the sky would be pretty much mundane.